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| author | Andreas Krebbel <krebbel@gcc.gnu.org> | 2013-01-11 16:43:49 +0000 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@gcc.gnu.org> | 2013-01-11 16:43:49 +0000 |
| commit | 1abcd5eb462c4f64c4902b7208c5818094fcd9aa (patch) | |
| tree | 209eef02337ad23839d03aa0a337cf669e303aa1 /gcc/config/s390 | |
| parent | 980d0812968529871862dc695ec3b013204e12dd (diff) | |
| download | gcc-1abcd5eb462c4f64c4902b7208c5818094fcd9aa.zip gcc-1abcd5eb462c4f64c4902b7208c5818094fcd9aa.tar.gz gcc-1abcd5eb462c4f64c4902b7208c5818094fcd9aa.tar.bz2 | |
re PR rtl-optimization/55719 (ICE: Segmentation fault)
2013-01-11 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
PR target/55719
* config/s390/s390.c (s390_preferred_reload_class): Do not return
NO_REGS for larl operands.
(s390_reload_larl_operand): Use s390_load_address instead of
emit_move_insn.
2013-01-11 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
PR target/55719
* gcc.target/s390/pr55719.c: New testcase.
From-SVN: r195109
Diffstat (limited to 'gcc/config/s390')
| -rw-r--r-- | gcc/config/s390/s390.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c index 621f1bc..7e87dcd 100644 --- a/gcc/config/s390/s390.c +++ b/gcc/config/s390/s390.c @@ -2978,9 +2978,23 @@ s390_preferred_reload_class (rtx op, reg_class_t rclass) it is most likely being used as an address, so prefer ADDR_REGS. If 'class' is not a superset of ADDR_REGS, e.g. FP_REGS, reject this reload. */ + case CONST: + /* A larl operand with odd addend will get fixed via secondary + reload. So don't request it to be pushed into literal + pool. */ + if (TARGET_CPU_ZARCH + && GET_CODE (XEXP (op, 0)) == PLUS + && GET_CODE (XEXP (XEXP(op, 0), 0)) == SYMBOL_REF + && GET_CODE (XEXP (XEXP(op, 0), 1)) == CONST_INT) + { + if (reg_class_subset_p (ADDR_REGS, rclass)) + return ADDR_REGS; + else + return NO_REGS; + } + /* fallthrough */ case LABEL_REF: case SYMBOL_REF: - case CONST: if (!legitimate_reload_constant_p (op)) return NO_REGS; /* fallthrough */ @@ -3061,7 +3075,7 @@ s390_reload_larl_operand (rtx reg, rtx addr, rtx scratch) emit_move_insn (scratch, symref); /* Increment the address using la in order to avoid clobbering cc. */ - emit_move_insn (reg, gen_rtx_PLUS (Pmode, scratch, const1_rtx)); + s390_load_address (reg, gen_rtx_PLUS (Pmode, scratch, const1_rtx)); } } |